/* 移动端优先设计 */
.auth-container {
  max-width: 400px;
  margin: 2rem auto;
  padding: 2rem;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.chat-container {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.message-list {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  background: #f8f9fa;
}

.message-bubble {
  background: white;
  border-radius: 1rem;
  padding: 0.8rem;
  margin-bottom: 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.message-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 0.5rem;
}

.message-content {
  color: #333;
}

@media (min-width: 768px) {
  .chat-container {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .message-bubble {
    max-width: 70%;
    margin-left: auto;
    margin-right: 0;
  }
}
